Dispenser SpecificationsDispenser Specifications

Dispenser SpecificationsDispenser Specifications

Propane Autogas Dispenser Specifications

Guidelines for the installation and dispensing of propane autogas equipment.

Propane Autogas

OVERVIEW AND PURPOSE:

These are recommended minimum specifications, from the Propane Education & Research Council, to ensure positive end-user experiences with the installation and operation of propane autogas dispensing equipment.

Following these specifications will ensure that new propane autogas dispensing equipment installed:

Complies with federal, state, and local codes, regulations, and requirements.

Dispenses fuel in a manner comparable to conventional fuels.

Will be the correct dispenser for the type of vehicle that will be refueled.

Meter accuracy shall be in accordance with federal, state, and local codes and regulations, with a minimum accuracy of ±0.6% (.006) linearity and ±0.24% (.0024) repeatability when dispenser is used for retail sales and/or custody transfer.

The meter shall be inspected prior to operation to ensure compliance with state weights and measure standards applicable at the location of installation when dispenser is used for retail sales and/or custody transfer.

If equipment is mechanical, indicate gallons dispensed and totalizer display.

If equipment is electronic: Indicate gallons dispensed, net or gross gallons. Dispenser may include display with an alpha numeric keypad for ease of entering data.

Electrical requirements:

All electrical installations shall be performed by a licensed, bonded electrician with motor control experience to ensure compliance with all federal, state, and local codes and regulations at the location of installation.

Dispenser and all internal electrical components and connections shall comply with the full intent of the manufacturer’s written specifications. Electrical components located within the dispenser cabinet, shall be Class 1 Group D Division 1 or Division 2, and be equipped with all required seal off devices as required in NFPA 70.

Meters shall be installed in accordance with manufacturers’ installation requirements.

Piping, valves, and fittings:

All piping within the dispenser cabinet shall be A53 Grade B or better, schedule 80 or approved equivalent materials.

All threaded fittings shall be forged steel, brass, or other materials approved for use with liquid propane.

Electrical service wire must be installed by a licensed, bonded electrician with knowledge and experience for the installation of the electrical equipment associated with this specific application. Electrical service wiring must comply with the motor manufacturer’s specified gauge requirements for necessary voltage and amperage required for safe operation.

Filter capable of filtering particles measuring five microns should be used.

Filter should be placed after the propane autogas pump, to filter the stored fuel prior to entering the vehicle.

Tank assembly:

Tank must be manufactured for its intended purpose and the tank installation must be compliant with federal, state, and local codes and regulations.

In an effort to reduce or eliminate the introduction of contaminants into the fuel system, new tank installations are recommended. However, used tanks that are thoroughly cleaned using an approved method are acceptable.

Tank provided shall be equipped with a bottom liquid connection. The pump location and inlet piping shall be designed to supply the pump with the volume of fuel sufficient to comply with the manufacturer’s recommended performance.

Installation foundation:

Tank and dispensing unit shall be assembled and installed in accordance in NFPA 58, NFPA 30A, and the AHJ (Authorities Having Jurisdiction).

ADDITIONAL INFORMATION

Dispensers designated for retail sales must comply with the National Institute of Standards and Technology Handbook 44, as well as all other requirements based on the location of the installation.